Mechanics around here are dicks with certain things. That, along with the money savings and the fact I can do repairs myself, keeps me avoiding them. A perfect example - I bought upper and lower ball joints for my truck this past Summer. I did the uppers on both sides, and the lower on one side, but the lower for the driver's side was shipped damaged. After busting my ass doing all that work, I still had one bad ball joint, and had to wait for a new one to be shipped.
By the time it got here, I just didn't feel like ****ing with it again, ball joints aren't fun. Easily my least favorite automotive repair. Since I had the part and didn't want to put it on, I called around to various places asking how much they would charge me to put it on. I got the same answer from over a dozen places - they refused to put on a part a customer provided. None of them gave a reason, so I am convinced it's collusion. The bastards.
So my truck to this day has that bad ball joint on it. Anyone who has installed lower ball joints on a truck understands my pain. The fact I own no pneumatic tools makes it that much more of a bitch. Brute strength and busted knuckles.